These
options set the position of the image in some field (e.g. on a screen) in
columns to the right of the left edge and rows below the top edge. The PCX
format contains image position information. Don't confuse this with the
position of an area of interest within the image. For example, using pnmpad
to add a 10 pixel left border to an image and then converting that image
to PCX with xpos = 0 is not the same as converting the original image to
PCX and setting xpos = 10.
The values may be from -32767 to 32768.
The default
for each is zero.